If you are using Windows 10, there are a few ways to delete files that are open in other programs. One way is to use the File Manager. The File Manager is a program that is included in the Windows operating system and it can be found on the Start screen. To use the File Manager, you need to click on the three lines that are located at the top of the File Manager window. The first line will show you a list of all of the files that are currently open in your computer. The second line will show you a list of all of the files that have been opened in other programs. The third line will show you a list of all of the files that have been deleted. To delete a file, just click on it and then click on Delete.